Real World article(written from a Production point of view)
Stephen Macht (born 1 May 1942; age 71) played General Krim in the Star Trek: Deep Space Nine episodes "The Circle" and "The Siege".
In 1987, he was considered for the role of Jean-Luc Picard. 
He was one of several Star Trek guest stars who appeared in DC 9/11: Time of Crisis. They include Penny Johnson, George Takei, Gregory Itzin, Lawrence Pressman, and Scott Alan Smith.